On Packetization of Embedded Multimedia (2008)
Xiaolin Wu, Senior Member, Samuel Cheng, Zixiang Xiong
Abstract—We study the problem of packetizing embedded multimedia bitstreams to improve the error resilience of source (compression) codes. This problem is important because of the increasing...
Hyohoon Choi, Samuel Cheng, Qiang Wu, Kenneth R. Castleman, Alan C. Bovik
Imaging specimens thicker than the depth-of-field of a microscope produces poor quality images as only a portion of the specimen is in focus. Therefore, even in the best focused image, there are...
Zhixin Liu, Samuel Cheng, Angelos D. Liveris, Zixiang Xiong
Nested lattice quantization provides a practical scheme for Wyner-Ziv coding. This paper examines the high-rate performance of nested lattice quantizers and gives the theoretical performance for...
Successive refinement for the Wyner-Ziv problem and layered code design (2004)
Driven by a host of applications, distributed source coding (DSC) has assumed renewed interest in recent years. Wyner-Ziv coding (WZC), which deals with the rate-distortion problem with side...
Zixiang Xiong, Angelos D. Liveris, Samuel Cheng
In recent years, sensor research has been undergoing a quiet revolution, promising to have a signifi-cant impact throughout society that could quite possibly dwarf previous milestones in the...
Thesis (M.S.)--MGH Institute of Health Professions, April 1999.
Error Concealment of MPEG-2 AAC Audio Using Modulo Watermarks (1998)
Cheng, Samuel, Yu, Heather, Xiong, Zixiang
We propose an error concealment scheme for MPEG-2 compressed (AAC) audio using a novel modulo watermarking technique. It can be used on top of other error control schemes. After the modulo watermark...